[WT-support] slow TS-850 CAT

[Olivier F5MZN]

Hello,

Bernhard Buettner DL6RAI wrote:
> Hi!
> 
> Yes, we observed the same problem at DQ4W during WAG and CQWW but
> did not try without network. I can confirm that Kenwood TS-850 radio
> control in v2 worked "smoother".
> 
> I believe the phenomenon was only observed on the station that had
> a real COM interface (and we had to set the COM handshake option to
> make it work). No problem on the radio with the virtual COM port via
> the Microham USB-II Interface.

I have done some tests here this morning. Conditions are: TS-850, real 
COM port (COM1) wired to my Kenwood through a micro Band Decode (OM7ZZ).

I have tried with various settings for DTR and RTS: always 0, always 1, 
handshake. Also tried with WT 3.5.0 and 2.5.2 (very old one). I cannot 
see any difference. It always works the same way, regarless the WT 
version or the DTR/RTS settings: when you turn the knob, the frequency 
is not refreshed in WT (the TS-850 does not transmit anything on its 
serial port until the knob stops rotating). As soon as I stop turning 
the knob, the frequency is updated in WT.

I have also observed, with PortMon (a serial port sniffer, 
http://www.sysinternals.com/Utilities/Portmon.html) that the radio does 
transmit a large amount of datas after I have turned the knob for a 
while. My guess is that the TS-850 does transmit some buffured datas, 
which in my case are sent smoothly to the PC but, for any reason, not in 
your case.

Maybe that micro Band Decoder has a build-in secret which make the 
serial communication fluent? Is it the case, Jozef?? :)

Anyway, I don't know really what to do because I cannot repeat the same 
here. If something changed between v3 and v2, that would be fine to know 
between which releases exactly. I know that it is hard to check but I 
have no other idea so far...

73 de Olivier / f5mzn
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